Supports number portability. It is safe to change the mobile phone manufacturer! It is a mobile phone charger that charges from a household outlet that can be used by domestic mobile phone makers with a multi-connector. It will be fully charged in about 2 hours without burdening the battery. Lightweight, slim and compact, it is very convenient for travel, work and business trips. It is possible to charge iPhone 4S / 4 / 3GS / 3G, iPod, MicroUSB compatible smartphones and Wi-Fi routers that have a DOCK connector! It can be charged safely and securely by complying with the Electrical Appliance and Material Safety Law. Compatible with overseas voltages as well as Japan! (Please purchase a conversion plug suitable for your country)